31460197 has 2 divisors, whose sum is σ = 31460198. Its totient is φ = 31460196.

The previous prime is 31460173. The next prime is 31460263. The reversal of 31460197 is 79106413.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30536676 + 923521 = 5526^2 + 961^2 .

It is a cyclic number.

It is not a de Polignac number, because 31460197 - 2¹⁹ = 30935909 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31460137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15730098 + 15730099.

It is an arithmetic number, because the mean of its divisors is an integer number (15730099).

Almost surely, 2^31460197 is an apocalyptic number.

It is an amenable number.

31460197 is a deficient number, since it is larger than the sum of its proper divisors (1).

31460197 is an equidigital number, since it uses as much as digits as its factorization.

31460197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 31460197 is about 5608.9390262330. The cubic root of 31460197 is about 315.6849026192.

The spelling of 31460197 in words is "thirty-one million, four hundred sixty thousand, one hundred ninety-seven".